static bool tok_importsClassNamed(L<S> tok, S className) {
  for (int i = 1; i < l(tok); i += 2)
    if (eq(tok.get(i), "import")) {
      int j = findEndOfStatement(tok, i); // index of ;+1
      if (eq(get(tok, j-3), className))
        ret true;
      i = j-1;
    }
  ret false;
}